Antiskid device



M. DEAN ANTISKID DEVICE Filed Dec. 2 1. 1922 2 S eets-Sheet 1 anpautoz,MICHHEL DMD.-

Qllmucu Oct. 2, 1923. 1,469,312 M. DEAN ANTISKID DEVICE Filed Dec. 21.1922 2 h ets-Sheet 2 Patented @ctc 2, 1923.,

MICHAEL DEAN, or wnns'rnn, PENNSYLVANIA,

ANTISKID DEVICE.

Application filed December 21, 1-922. Serial No. 608,309.

To aZ-Z whom it may concern:

Be it known that T, illlCHAEL DEAN, a citizen of the United States ofAmerica, residing at ll ebstcr, in the county of id es? moreland andState of Pennsylvania, have invented certain new and usefulTinprovements in Antiskid Devices; and I do hereby declare that thefollowing is a full, clear, concise, and exact description of theinvention, such as will enable others skilled. in the art'to whicn itappertains to make the same.

This invention relates to improvements in anti-skidding devices for useupon vehicle wheel tires and has for an object to provice ananti-skidding device wherein the traction increasii'ig chains are soarranged and int; connected as to prevent skidding oi' vehicle wheelequipped therewith either longitudinally or transx-ersely of a slipperor muddyway being traverset by the wheel, and in the event that certainof the links of the chains should become broken, as by excessive strainor wear, the ctliciency of the device will not be materially detractedfrom and also, will remain in proper position over the tread portion ofthe vehicle tire;

Other objects will be in part obvious and in part pointed outhereinafter.

In order that the invention and its mode" of operation may be readilyunderstood by persons skilled in the art, I have in the ac companyingillustrative drawings and in the detailed following description basedthereon, set out one possible embodiment of the same.

In these drawings: Figure 1 is a side el vehicle wheel havin my thereto;

Figure 2 is a top plan view or" the same; Figure 3 is a verticaltransverse section through the tire of the ing a portion of the chain;

vation of an ordinary invention applier and V p Figure 5 is an enlargeddetail of the chain.

vided and are adapted to be snugly engaged and use vehicle wheel show Fiure is a side elevationof the same;

' design and construction. '1

1 are proover the telly and rim portions of the wheel as is moreparticularly shown in Figure 3 and these anchoring brackets 1 occur atequi-distant intervals throughout the circumference of the vehicle tire.The inner faces of these anchoring brackets are each lined with asuitable pad 2 so as to prevent the bracket from scratching or otherwiseinjuring the rim of the vehicle wheel. These brackets l are providedwithapertured ears 3 formed with the opposite extremities there-- of andare adapted to receive the threaded shank portions of the eye-bolts 4eand locking wing nuts 5 are turned into engagement with the screwthreaded shank portions of said eyebolts and are prevented againstturning by the employment of cotter pins 6. Arrangedon each side of thetire and-exending through the eyelets'ot the bolts 4 are the chains 7which are each provided with the latch member 8 whereby their oppositeends ma be connected together. Arranged at equi-distant intervalsthroughout the circumference of the vehicle tire and extendingtransversely thereof are the chains 9 engaged at their opposite endswith the hooks 10. These chains 9 extend over the tread portions of thetire adjacent each of the anchoring brackets 1 and the hook members 10thereof may engage in the eyelets of the bolts 4 as shown in the drawingor they the chains 9 upon the treadportionotthe vehicle tire. Therefore,in the following description, I will only describe one of these sectionsand it of course will be understood that any number of sections maybe employed each having the chains of the same "he medial portion of eachsection comprises four link 11 which are connected to form a square asis better illustrated in Figure 5. Extending diagonally across the treadofthe'tireare two sets of chains, each of which consists of'two'sections indicated by the numerals 12 and 13. The inner ends ofthese sections 12 and 13 are conneiited to the links 11 whereas theiropposite ends are provided with hooks 14 which engage the chains 7Transversely extending chains 15 are also provided upon the treadportion of the tire and each of these chains 15 are provided with hooks16 at their extremities which are engaged in the chains 12 and 13 forretaining the chains 15 in place. Connected to the links 11 are thechains 17 and each of these chains are provided with hooks 18 which alsoengage the chains 7 arranged on each'side of the vehicle tire therebyproviding the means for properly anchoring the sections or the deviceupon the tread portion of the vehicle tire. Having reference moreparticularly to Figure 4 of the drawing, it will be noted that one linkof the ch ins 7 which is indicated by the numeral 19 extends througheach eyelet of the bolts 4 and the hooks 14 of the diagonally extendingchain members l2vand 13 engage the links on each side of the eyelet 20therebylocking the chains 7 so as to prevent the latter from movingcircumferentially around the tire.

Because of the. arrangement of the diagonally disposed chains 12 and 13together with the transversely arranged chains l7 andlinks 11, it Willbe understood that a wheel equipped with the invention will be enabledto move over a muddy or slippery roadway without longitudinal ortransverse skidding thereon. The diagonally disposed chains 12 and 13 byreason of their relative positioning with respect to the tread portionof the tire T together with the arrangement of the intermediate orcrossed portions thereof will be such as to materially reducepossibility of side slipping or trans verse movement of the wheel, whilethe 'arrangement of the transverse anti-skid chains 9 and 15 togetherwith thediagonally disposed chains 12 and 13 will serve to preventlongitudinal slippage of the wheelupon a roadway. Furthermore, shouldcertain of the links of the various chains become broken, as by theapplication of excessive stress thereto, or by wearing of the sameexcessively,-it will be understood that the same will be prevented frombecoming entirely disengaged fronrthe vehicle tire or wheel by reason oftheir multiple connection to the same and in consequence, properarrangement of the anti-skid device with respect to the tread'portion ofthe tire T will be ensured, irrespective of breakage of certain of thechains.

Manifestly, the construction shown is capable of considerablemodification and such modlficatlon as 1sw1th1nthe scope of my claims, Iconsider within the spirit of my" invention. V

I claim:

1. An anti-skid device for vehicle wheels comprising chains extendingdiagonally over the tread portion of the wheel tire, means forinter-connecting the intermediate portion of said chains directlyadjacent the tread portion of the vehicle tire, eye-bolts connected tothe free extremities of said diagonal chains, transversely disposedchains connected at their opposite ends to the intermediate portions ofsaid diagonally disposed chains, U-shaped anchoring brackets havinglaterally disposed apertured extremities arranged over the wheel tellyand receiving said eye-bolts, and'circumi'erentially arranged chainsdisposed upon the opposite sides of the wheel tire connected to theeye-bolts in equi-distant spaced relation. 2. An anti-skid device forvehicle wheels comprising a plurality of sections, anchoring membersattached to the wheel and ar ranged between each two adjacent sections,eyelets adjustably secured to each anchoring member, a circumferentiallydisposed chain extending on each side of the wheel and passing throughsaid eyelets, said sections each comprising diagonally extending chains,hooks provided for the ends of said diagonal chains, and saidhooksengaging said circumferentially disposed chains on each side ofsaid eyelets substantially as and for the purpose specified.

3. An anti-skid device for vehicle wheels comprising a circumferentiallydisclosed chain arranged on each side of the wheel tire, U-shapedanchoring brackets having laterally disposed apertured extremitiesarranged over the wheel telly, eye bolts received by said aperturedextremities, said circumterentially disposed chains extending throughsaid eyebolts, a plurality of tread sections extending over the wheeltire, each section consisting of diagonal chains having their medialportions interconnected and their opposite ends connected 'to said circumferentially disposed chains at points on each side of said eye bolts,transverse links connecting the medial portions ofsaid diagonal chainswith said circumferentially disposed chains, transverse chains. arrangedover the wheel tire and connected at their, i

opposite ends to the intermediate portions of said diagonal chains andother transverse chains arranged over the tire tread andconnected attheir opposite ends to said eye bolts.

In witness whereof my hand.-

MICHAEL DEAN. I

V I have hereunto: set

